Dear Folks;
A very serious bug was reported on pg_lesslog. So far, I found it's
a bug in pg_compresslog. Please do not use pg_compresslog and
pg_decompresslog until improved version is uploaded.
I strongly advise to take base backup of your database.
I apologize for inconvenience. I'll upload the new version ASAP.
Warmest Regards;
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Koichi Suzuki